连续运行参考站选取对GNSS基线处理精度的影响分析  

Analysis of influence of continuous operation reference station selection on GNSS baseline processing accuracy

作　　者：袁晓妍 秦童 赵友兴 YUAN Xiaoyan;QIN Tong;ZHAO Youxing(The Second Geomatics Cartography Institute of Ministry of Natural Resources,Harbin 150081, China;The First Surveying and Mapping Engineering Institude of Heilongjiang, Harbin 150025, China;Heilongjiang Geomatics Industrial Park Co.,LTD,Harbin 150025,China)

机构地区：[1]自然资源部第二地理信息制图院,哈尔滨150081 [2]黑龙江第一测绘工程院,哈尔滨150025 [3]黑龙江省地理信息产业园有限公司,哈尔滨150025

出　　处：《测绘工程》2022年第4期35-38,共4页Engineering of Surveying and Mapping

基　　金：中央引导地方科技发展专项(ZY17A02);黑龙江省应用技术研究与开发计划重大资助项目(GA17A301)。

摘　　要：随着连续运行基准站(CORS)技术的发展,利用连续运行基准站起算成为处理GNSS静态数据的最常用方法之一。在实际的数据处理操作中,为实现更高的精度,提高数据的可靠性,有时会通过改变基准站的数量来获取更高的数据处理质量。文中旨在以对照试验的方式,在两个测区不同的基准站分布情况下,在保证网型合理的基础上对基准站的数量进行增减,分别进行基线处理和平差,分析基准站的选取情况和基线处理精度之间的关系。试验结果表明,在保证基准站分布均匀时,增加基准站的数量会使基线的处理质量有所提高。但在网型不均匀的情况下,增加基准站可能会影响到基线处理质量。With the development of continuous operation reference station(CORS)technology,standing calculation using continuous operation reference station has become one of the most common methods to deal with GNSS static data.In the actual data processing operations,in order to achieve higher accuracy and improve data reliability,the number of reference stations is sometimes changed to try to obtain higher processing quality.The purpose of this paper is to increase or decrease the number of reference stations on the basis of ensuring the reasonable network type in the case of different distribution of reference stations in the two test areas by the way of control experiment,and to analyze the relationship between the selection of reference stations and the accuracy of baseline treatment.The experimental result shows that increasing the number of reference stations will improve the processing quality of baseline while ensuring the uniform distribution of reference stations.However,the quality of baseline treatment may be affected by the addition of reference stations in the case of uneven network type.

关 键 词：工程控制网 静态GNSS观测 连续运行基准站 基线处理 精度分析 

分 类 号：P228[天文地球—大地测量学与测量工程]